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Germany invades Poland
The Invasion of Poland, known in Poland as the September Campaign or the 1939 Defensive War, and in Germany as the Poland Campaign, was an invasion of Poland by Germany that marked the beginning of World War II -
SitzKrieg
The Phoney War was an eight-month period at the start of World War II, during which there was only one limited military land operation on the Western Front, when French troops invaded Germany's Saar district -
France Falls to Germany
The Battle of France, also known as the Fall of France, was the German invasion of France and the Low Countries during the Second World War. -
Battle of Britain
The Battle of Britain was a military campaign of the Second World War, in which the Royal Air Force defended the United Kingdom against large-scale attacks by Nazi Germany's air force, the Luftwaffe -
America First Committee Launched
The America First Committee (AFC) was the foremost United States non-interventionist pressure group against the American entry into World War II. -
Destroyers-for-Bases Deal
An Agreement between the United States and the United Kingdom in which class US Navy destroyers were transferred to the Royal Navy from the United States Navy in exchange for land rights on British possessions -
Congress Instituted the Draft
The 1940 law instituted conscription in peacetime, requiring the registration of all men between 21 and 35, with selection for one year's service by a national lottery. President Roosevelt's signing of the Selective Training and Service Act began the first peacetime draft in the United States. -
Lend-Lease
The Lend-Lease policy, formally titled An Act to Promote the Defense of the United States, was an American program to defeat Germany, Japan and Italy by distributing food, oil, and materiel to the Allies -
Four Freedoms
Roosevelt insisted that people in all nations of the world shared Americans' entitlement to four freedoms: the freedom of speech and expression, the freedom to worship God in his own way, freedom from want and freedom from fear. -
USS Kearny Attacked (DD-432)
a United States Navy warship during World War II. She was noted for being torpedoed by a German U-boat before the U.S. had entered the war. She survived that attack, and later served in North Africa and the Mediterranean. -
Reuben James Sank
A post-World War I, four-funnel Clemson-class destroyer—was the first United States Navy ship sunk by hostile action in the European theater of World War II -
Japanese Attack on Pearl Harbor
The Attack on Pearl Harbor was a surprise military strike by the Imperial Japanese Navy Air Service against the United States naval base at Pearl Harbor, Hawaii Territory -
Battle of Bataan
The Battle of Bataan represented the most intense phase of Imperial Japan's invasion of the Philippines during World War II. (Japanese Victory) -
Bataan Death March
the forcible transfer by the Imperial Japanese Army of 60,000–80,000 American and Filipino prisoners of war from Saysain Point, Bagac, Bataan and Mariveles to Camp O'Donnell, Capas, Tarlac, via San Fernando -
Battle of Coral Sea
A major naval battle between the Imperial Japanese Navy (IJN) and naval and air forces from the United States and Australia, taking place in the Pacific Theatre of World War II. -
Island Hopping Campaign Begins
Leapfrogging, also known as island hopping, was a military strategy employed by the Allies in the Pacific War against Japan and the Axis powers during World War II. -
Battle of El Alamein
The Second Battle of El Alamein was a battle of the Second World War that took place near the Egyptian railway halt of El Alamein. -
MacArthur Returned to Philippines
General Douglas MacArthur and members of his family and staff left the Philippine island of Corregidor and his forces, which were surrounded by the Japanese. They traveled in PT boats through stormy seas patrolled by Japanese warships and reached Mindanao two days later. -
Manhattan Project Began
The Manhattan Project was a research and development undertaking during World War II that produced the first nuclear weapons. It was led by the United States with the support of the United Kingdom and Canada. -
Battle of Midway
The Battle of Midway was a decisive naval battle in the Pacific Theater of World War II that took place only six months after Japan's attack on Pearl Harbor and one month after the Battle of the Coral Se -
Casablanca Conference
The Casablanca Conference was held at the Anfa Hotel in Casablanca, French Morocco, to plan the Allied European strategy for the next phase of World War II. In attendance were United States President Franklin D. Roosevelt and British prime minister Winston Churchill -
Battle of Stalingrad
The Battle of Stalingrad was the largest confrontation of World War II, in which Germany and its allies fought the Soviet Union for control of the city of Stalingrad in Southern Russia. -
Tehran Conference
The Tehran Conference was a strategy meeting of Joseph Stalin, Franklin D. Roosevelt, and Winston Churchill from 28 November to 1 December 1943, after the Anglo-Soviet Invasion of Iran. -
D-Day
The Normandy landings were the landing operations of the Allied invasion of Normandy in Operation Overlord during World War II. Codenamed Operation Neptune and often referred to as D-Day, it was the largest seaborne invasion in history. -
FDR Elected to a 4th Term
President Franklin Delano Roosevelt is elected to an unprecedented fourth term in office. FDR remains the only president to have served more than two terms. -
Battle of the Bulge
Also known as the Ardennes Counteroffensive and was the last major German offensive campaign on the Western Front during World War II. -
Yalta Conference
The Yalta Conference was the second wartime meeting of British Prime Minister Winston Churchill, Soviet Premier Joseph Stalin and U.S. President Franklin D. Roosevelt. During the conference, the three leaders agreed to demand Germany's unconditional surrender and began plans for a post-war world. -
Battle of Iwo Jima
The Battle of Iwo Jima was a major battle in which the United States Marine Corps landed on and eventually captured the island of Iwo Jima from the Imperial Japanese Army during World War II. -
Battle of Okinawa
The Battle of Okinawa, codenamed Operation Iceberg, was a major battle of the Pacific War fought on the island of Okinawa by United States Marine and Army forces against the Imperial Japanese Army -
FDR Died/Truman becomes President
The presidency of Harry S. Truman began on April 12, 1945, when Harry S. Truman became President of the United States upon the death of Franklin D. Roosevelt, -
Potsdam Conference
The Big Three—Soviet leader Joseph Stalin, British Prime Minister Winston Churchill, and U.S. President Harry Truman met in Potsdam, Germany to negotiate terms for the end of World War II. -
Little Boy dropped on Hiroshima
The United States dropped an atomic bomb on the city of Hiroshima. The bomb was known as "Little Boy", a uranium gun-type bomb that exploded with about thirteen kilotons of force. -
Fat Man dropped on Nagasaki
It was the second of the only two nuclear weapons ever used in warfare, the first being Little Boy, and its detonation marked the third nuclear explosion in history. -
Nuremberg Trials
The Nuremberg trials were a series of military tribunals held by the Allied forces under international law and the laws of war after World War II -
VE Day
Victory in Europe Day, generally known as VE Day or V-E Day, was celebrated on Tuesday, 8 May 1945 to mark the formal acceptance by the Allies of World War II of Nazi Germany's unconditional surrender of its armed forces. -
VJ Day
Victory over Japan Day is the day on which Imperial Japan surrendered in World War II, in effect bringing the war to an end -
Japanese War Crime Trials
Japanese war crimes trial begins. In Tokyo, Japan, the International Military Tribunals for the Far East begins hearing the case against 28 Japanese military and government officials accused of committing war crimes and crimes against humanity during World War II.